Properties of Numbers

Which of the following is NOT divisible by 4?

• 1,000

• 5,740

• 1,566

• 2,024

Which of these numbers is divisible by 2 AND 5?

• 675

• 674

• 670

• 673

A prime number...

• has one factor.
• has more than 2 factors.
• has 100 factors.
• has exactly 2 factors: 1 and the itself.

Find ALL FACTORS of 24

• 1, 2, 12, 24

• 1, 2, 8, 24

• 1, 2, 3, 4, 5, 6, 8, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

657 is divisible by 3

• True

• False

Which list has only prime numbers?

• 2, 3, 4, 5
• 1, 5, 7, 9
• 2, 3, 5, 7
• 2, 4, 6, 8

Lisa is making identical flower arrangements for wedding reception. She has 32 white roses, 24 pink roses, and 16 bunches of babies breath. She wants each arrangement to have the same number of each flower. What is the greatest number of arrangements that she can make if every flower is used?

• 6

• 2

• 4

• 8

What is the least common multiple of 12 and 10?

Carlos has 36 tomato plants and 81 pepper plants to place in rows. Each row must have the same number of each plant and he must have no plants left over. What is the largest number of rows Carlos can make?

• At most, he can make 6 rows.

• At most, he can make 8 rows

• At most, he can make 9 rows.

• At most, he can make 12 rows.

• The answer is not given.

Samuel is pairing up one gel-pen with one note-pad as gifts. The gel-pens come in packs of 6 and the note-pads come in packs of 4. What is the smallest number of gifts Samuel can make so that nothing is left over?